111223223 has 2 divisors, whose sum is σ = 111223224. Its totient is φ = 111223222.

The previous prime is 111223157. The next prime is 111223243. The reversal of 111223223 is 322322111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111223223 - 2⁸ = 111222967 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111223243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611611 + 55611612.

It is an arithmetic number, because the mean of its divisors is an integer number (55611612).

Almost surely, 2^111223223 is an apocalyptic number.

111223223 is a deficient number, since it is larger than the sum of its proper divisors (1).

111223223 is an equidigital number, since it uses as much as digits as its factorization.

111223223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 111223223 is about 10546.2421269379. The cubic root of 111223223 is about 480.9114957399.

Adding to 111223223 its reverse (322322111), we get a palindrome (433545334).

The spelling of 111223223 in words is "one hundred eleven million, two hundred twenty-three thousand, two hundred twenty-three".